Paper-making machine.



M. LAMORT.

PAPER MAKING MACHINE.

APPLICATION FILED DEC. 30, 1912.

Patented Apr. 21, 191i 3 SHEETSSHEET 1.

MA RGEL LAMORT ATTORNEY \NvEN-roR M. LAMORT.

PAPER MAKINGMACHINE. APPLICATION FILED DBO. at 1912.

Patenfid lipr. 21, 1914.

.3 SHEETS-SHEET Z.

MW KL n WL N N R m mm lmMbA M. LAMORT.

PAPER MAKING MACHINE.

APPLICATION FILED nmso, 1912.

Patented Apr. 21, 1914.

3 SHEETS-SHEET 3.

{NVENTOR 'MARCEL LAMORT ED ATTO RN EY UNITED STATES PATENT OFFICE.

TMABGEL LAMOBT, OF VITRY-LE-FRANQOIS, FRANCE.

runnrnsmne MACHINE.

essons.

Specification of Letters Patent.

Patented Apr. 21, 1914.

Application filed December 30, 1912. Serial No. 739,363.

To all whom it may concern Be it known that I, MARQEL LAMoR'r, subject of the Grand Duke of Luxemburg, re-

siding at Vitry-le-Frangois, Department of Marne, France, have invented-new and useful Improvements in Paper Making Machines, of which the following is a specification.

The present invention relates to a new arrangement of the working table or frame for paper-making machines in which the strainer or strainers participate in the shake and in the vertical adjustment of the frame,

the characteristic feature of the new arrangement being the combination in a single and uninterrupted structure of the strainer and til the frame or .working table of the paper making machine.

According to the present practice the strainers of the various types in use which are arranged at the .wet end of the paper making machine are not rigidl connected with the frame proper over which the wire is moved. 'On the contrary the two named parts of the pa er making machine are generally separate the strainer on to the wire through channels or chutes which are of a more or less complicated construction and frequently comprise fsmall' cascades. Moreover in the lmown constructions, the table or frame proper receives. a shaking motion from side to side called shake, whereas the strainers.

1... 2|. machine, the new arrangement forming the, subject of the invention enables a considerable simplification to berealized as it permits varlous parts which were hitherto required between the strainers and the wet. end of the machine such as chutes, channels, aprons made 0 rubher and ates to be entirely dispensed by passages andin all the lmown constructions the pulp passes from As regards the construction of thepaperwith; The improved arrangement has moreover the following advantages: -Itenables the breast roll end of the frame to be adjusted to different elevations withinvery wide limits and without the use of any special devices. The vat of the strainer maybe utilized as the main cross beam connecting the longitudinal beams of the frame proper. The space required for the installation of the straining apparatus is reduced to a minimum which results in a considerable saving.

Asregards the formation'of thepaper or cardboard'sheet, the advantages of the improved arrangement formin the subject of the invention are the following :.The length of travel of the pulp is reduced to a minimum. The loss of pulp due to the necessity of chan ing from time to time the grade of the. stoc and to stoppages is reduced to a ,minimum.- Since the vat of the straining apparatus takes part in. the shaking motion of the frame, the pulp contained in the vat is continuously shaken which has the result of avoiding the formation of deposits and of maintaining the pulp in a very homogeneous conditlon of density in all. parts of the vat. If strainers of the revolving type are used the improved arran ement increases the output or efiiciency o the strainers as owing to the vibratory motion of the vat or: vats with regard to the drum or drums, which latter remain stationary, a.

number-of pulsations is produced between the pulp. contained in the drums and that contained in the vats. These pulsations facilitate the passage of the pulp through the slots of the drum which may in the usual manner have a combined rotary movement andupand down vibration. Since the width of, the pulp sheet which passes from the discharge end of the strainer is exactly equal to the width of the sheet produced upon the frame, (both being regulated by the so called deckle straps made of rubber) all causes leading to a disturbance of the flow of the pulp by an increase or a reduction of the sectlonal area of the passage of flow are eliminated. These advantages are of the greatest importance as regards the formation of the sheet, as waves or ripples in the sheet are entirely avoided owin to the fact that the fibers flow along abso utely rectilineal paths from the .vat'of the strainer down to the gates or slicers which serve for determining the height or thickness of, the sheet. "The height or thickness is therefore maintained absolutely equal along the whole width. The improved arrangement moreover avoids one of the main causes of the formation of so called pointed sheets since the quantity of pulp which arrives at the gates or slicers is absolutely uniform along the whole operative width of the frame.

In order thatrthe invention may be clearly understood, one construction of the parts necessary to carryout the invention is illustrated in the accompanying d'lfawings, the strainer illustrated bein type, for instance a strainer of the known construction Lamort. It should be noted, however, that the invention is not in any way restricted to the use of any particular kind of strainer, since inost of the known kinds of'strainers, fiat as well as revolving, may be used in connection with the present invention, in some-cases suitable alteration of the vats being required for the purposes ofthe invention.

Figures 1 and 1' assembled along the line II represent in elevation the straining apparatus combinedwith the frame proper of the paper makin machine. Fig. 2 is a plan of one half of t e parts arranged near the breast roll end of'the machine, the other half not shown, being symmetrical to the illustrated half.- Fig. 3 is a diagrammatic view illustrating the mechanism for imparting a shaking motion or jog to the vat of the strainer, Figs. 4 and 5.are diagrammatic top viewsshowm two manners of mounting two strainers 111 a common vat, in the case of large paper making machines.

Throughout the drawings the same reference numbers have been used for the same 'parts.

In the example shown in the drawings, 1 represents'the vat of a strainer. of the Lamort type which may consist of a number i of wooden boards 2, the ends of which may proper. The lower en be-fixed b bolts in two end pieces or cheeks 3 made 0 cast iron. These end pieces serve assupports and are provided at their underprojections 4 to which are. hinged at6 vertlcal rods 5 of the kind generally used for su porting the frame db 7 of the rods-are adapted to pivot about the bearing plates 8 carried by beams 9 which rest at their ends 13 upon supports 10 andare adapted to turn at their other ends about pivots 11.

The longitudinalbeams 9 may be raised or lowered in a well known manner by means of a cam and a screw s indle 12, their ends 14 being as above mentioned pivotally su ported at 11. N

It will be seen that the vat 1 of the strainer participates in the vertical adjustment of the table while the drum 15 of the strainer as well as the means for rotating and vibrating the drum in the vertical direction, which means are not shown m the of the revolving drawing, remain unafi'ected by the ad'ustment of the frame. The. drum and its riving means may for this purpose be mounted 1n ependently upon the main frame or directly upon the floor. The lateral checks 3 of the vat are provided with extensions 16 to which is connected by bolts a curved cop per sheet 17 which extends the whole width of the working frame. The sheet 17 is also mounted upon a cross member 18 and the whole combination of parts is mounted upon the longitudinal beams 19 which are usually called the main beams of the working frame. It should be noted that contrary to the constructions at present in use, the main beams 19 are continued in front of the frame and are fixed at 20 to the vat 1 of the strainer.

21 is the breast roll, whereas 22 designates the endless wire cloth of the machine;

23 are the rubber straps usually called deckle-straps whichserve for deter-mining the width of the paper sheet to be produced upon the wire 22, the said straps bein as usual supportedby grooved pulleys 24 and 25.

26 and 27 are the usual cross ates or slicers which serve for determining the thickness or height of the sheet of pulp flowing upon the wire 22 according to the nature of the paper to be produced. Other vertical rods supporting the main beams 19 are shown at 28.

It should be noted that most of the elements are shown diagrammatically only, as they are very well known parts of a paper making machine.

The pulp passes from the vat on tothe wire 22 directly flowing along the sheet 17, as soon as the level of the pulp within the vat reaches the point 29. It may be pointed out that the vat 1 may be arranged at any desirable height with regard to the wire, for instance as shown by chain lines at 30 in Fig. 1. A tight joint between the discharge end of the vat and the deckle-straps 23 is insured by means of copper plates 31 adapted to slide across the dlscharge end of the vat and to be adjusted according to the width of the paper sheet to be produced.

Fig. 3 shows diagrammatically the known arrangement for im arting to' the table the lateral shaking motion called jog, in which the vat 1 of the strainer participates according to the invention. In the example shown the shake is'obtained by means of a connecting rod 32 which is hinged to the main beam 19 and is driven by the erank 33.

For machines dealing with a very large quantity of pulp, two or more drums such as 15, 15' may be arranged within a common vat. As'shown in Fig. 4 the axes of the dfums may be parallelto the axes XY of the frame, or as shown in Fig. 5 the drums may be arranged. at ri ht angles to the longitudinal axes of the rame. In .both cases the straining mechanism is connected with the workingframe in'the manner above described.

Claims. 1. In paper maln'ng'machines an arrangement according to which the workin frame proper of the machine over which t e wire passes is connected with the strainer in a.

rigid and uninterrupted structure so that the strainer participates in the shakingiinotion of the frame, and also participates in the vertical adjustment of the said frame, the

said arrangement including the combination of a straining drum; a vat :receiving the drum; vertical rods supporting the vat, the said rods 'bein hinged to 'the'vat at their upper ends, an adapted to turn about their lower ends; a main frame supporting the wire; vertical rods supporting the main frame, the said rods being'hinged to this fram e at their upper ends, and-adaptedto turn about their lower ends; a sheet connecting the vat ofthe strainer and the working frame, and adapted to guide the pulp from the strainer on to the wire cloth; side plates fixed to the vat, and adapted to efiect a tight joint between the vat and the working table; meansfor imparting a rotary movement to the drum of the strainer; and.

means for imparting a shaking motion to the working table and the vat.

2. In papermaking machines an arrangement according to which the working frame proper of the machine over which the wire passes is connected with the strainer in a rigid and uninterrupted structure so that the strainer participates in the shaking motion of'the frame, and also articipates in the vertical ad ustment of t e said'frame,

the said arrangement including the combination of a straining drum; a vat receiving the drum; vertical rods supporting the vat,

means; longitudinal beams supporting the upper ends-of the vertical rods of the working tabie, such beams being hinged to the vertical supporting rods and fixed to the vat at one of their ends; a connecting rod hinged 'to the other ends of the said beams; a crank adapted to drive the said connecting rod in such a manner as to impart a shaking mostrainer and means for vertically adj usting the vat of the strainer with regard-to the main frame.

In testimony whereof I have signed my tion to the main frame and to the vat of the name to this specification in the presence of two subscribing witnesses.

. -MARGEL LAMORT.

Witnesses; v 1

- J ULns- FAYOLNEY. Annm'a BORDILLO. 

